Nottingham service & arm setup

Picked up a Hyperspace w/ Anna arm recently, arm had aftermarket wiring done by previous owner which I did not like. Called ASL and sent the arm to England to re-wire, arm came back with brand new wiring for less than $300.

If that's not enough shock to a typical audiophile, Nottingham also replaced the bearing & polished the arm for me free of charge! Talked about customer service at it's best, kudo to Nottingham for the superb service!

Now my setup question.

I have used VPI & Graham, both allow user to adjust azimuth. I noticed the sound to come slightly off center with my Hyperspace/Anna/Denon 103R, is there any way to adjust azimuth or my only option is to tweak anti-skate until the sound is centered again?

Also, has anyone experimented with string instead of belt? I tried some nylon strings, it did not have enough traction and speed was slow regardless how much tension I exerted on the string and I did not want to put excessive wear on the motor bearing.